Digibase C41 question

I use a Jobo ATL 1500 processor. In one drum I'm able to process 6 rolls of 120 at a time in about 650ml of chemistry. Now my question is if i have another 6 rolls to process can i reuse all the chemistry without altering it or adding to it or altering the timing of the process in any way? That's just 1 extra process run with the chemistry, at the moment I just use it as single shot.

Any thoughts would be appreciated.